Hi all,
I started my Solar shed adventure with 4 used panels and Growatt SPF 3000TL LVM-ES inverter.Then I added single 50Amp battery without BMS communication connection. After a while fiddling with settings I decided to add another battery. I wasn't able to get 100% of 2nd battery so company send me replace unit.
In meantime after getting deeper into this I decided that I should get proper battery that can communicate with inverter since using Voltage as battery SOC is not really reliable.
Long story short I end up with new EG4 100Ah battery with BMS communication in LI mode up and running and I have 3 "dumb" batteries that I can't return.
So I'm trying to figure out what will be best way to utilize all that battery power.
My first idea was to connect two ( or three ) 50 Ah batteries parallel to bus bar and connect EG4 to same bus bar and let them charge/discharge at same rate as EG4
Is this the best option ? Or maybe I should connected 50 Ah batteries parallel directly to EG4 ....?
Please see diagram of potential layout .
Please advise ...
I started my Solar shed adventure with 4 used panels and Growatt SPF 3000TL LVM-ES inverter.Then I added single 50Amp battery without BMS communication connection. After a while fiddling with settings I decided to add another battery. I wasn't able to get 100% of 2nd battery so company send me replace unit.
In meantime after getting deeper into this I decided that I should get proper battery that can communicate with inverter since using Voltage as battery SOC is not really reliable.
Long story short I end up with new EG4 100Ah battery with BMS communication in LI mode up and running and I have 3 "dumb" batteries that I can't return.
So I'm trying to figure out what will be best way to utilize all that battery power.
My first idea was to connect two ( or three ) 50 Ah batteries parallel to bus bar and connect EG4 to same bus bar and let them charge/discharge at same rate as EG4
Is this the best option ? Or maybe I should connected 50 Ah batteries parallel directly to EG4 ....?
Please see diagram of potential layout .
Please advise ...
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